A GoFundMe for programming time to fix the OS X Mojave version? I bet we could get a few donations for programming hours... Ho, Ho, Ho
That is not a bad idea at all. It would cost nothing to prop up and people like me would probably kick in quickly to try to get it over the top.
Here, I'll commit right now: $100 the minute you can point me to a site that'll accept it and the team commits to a Mac version.